Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Measurement
Modbus adapter
OPC
OPC Servers
OPC Clients
Parameter
Parity
PC
PLC
Power
IT
Power Factor Controller
Receive
RTS
RVT
RTU
Rx
Signed Integer
Time-out
Transmit
STATUS
Approved
A measurement is a value computed by the controller through its analog and digital inputs.
Measurements can be read from the RVT front plate, or through the Modbus protocol.
It is an optional small interface module through which the RVT is connected to an external
Modbus serial communication bus. It performs an optical to RS485 conversion. The commu-
nication with the Modbus adapter is activated with an RVT parameter.
OLE™ for Process Control. OPC is Plug-n-Play in the field of Automation and HMI. OLE™
for Process Control (OPC™) is the most standard way for connecting hardware and data
devices with HMI client applications.
OPC is a concept agreed upon by a committee of members from the OPC foundation. Most
automation companies in the market place including ABB are members of this foundation.
OPC uses state-of-the art technologies like COM, DCOM, ActiveX of Microsoft and makes
development and programming easier.
In the OPC world, there are two major types of applications: OPC Servers and OPC Clients.
OPC Server applications are used to collect data from the data sources like hardware de-
vices. At the bottom level, the servers are mainly for reading inputs and writing outputs of the
data sources. At the upper level, the servers make the data available in a standard way to
the OPC client applications.
The OPC Client applications can communicate directly with the OPC servers and get the
data. This way OPC enhances the interface between client and server applications by
providing a standard mechanism to communicate data from a data source to any client appli-
cation.
A parameter is an operating data for the controller. Parameters can be read and pro-
grammed with the RVT front plate, or through the Modbus protocol.
Simple method of data error checking performed at the byte level. May be user-specified as
Odd, Even or None with most equipment and software.
Personal Computer
Programmable Logic Controller
Microprocessor based controller from the ABB industrial controller range. The Power
Factor Controller RVT is intended to switch capacitor in order to compensate the power fac-
tor of the electrical network.
Incoming communication signal. (Rx)
RequestToSend hardware handshaking signal. Used with ClearToSend.
see Power
IT
Power Factor Controller RVT
Remote Terminal Unit
See Receive
Whole number value represented by 16 bits (-32768 to 32767)
Parameter specifying the max. wait time in ms. Waiting for a response in the range 0..10000
ms.
Outgoing communication signal. (Tx)
SECURITY LEVEL
Public
DOCUMENT ID
9AKK107045A9895
RS 48 5 A DAPTE R
IT
Power
REV.
LANG.
PAGE
E
en
18/21
© 2022 Hitachi Energy. All rights reserved.
Werbung
